346 THE VIVARIUM. 
is covered are whitish at the top. The pupil is contracted in a 
minute square opening, from which four black lines radiate.” 
This Frog is very active and able to jump long distances. It 
has lately been brought into England in some numbers, and, 
when in the market, may be bought for a few shillings. In size 
it is a little larger than the European Tree-Frog (H. arborea), 
and may be associated with it in the same case, and treated in a 
like manner. It is a native of New South Wales and Tasmania. 
Of H. peronii, the upper surfaces are tuberculate, and the lower 
granulate; there is a fold from the eye to the shoulder, another 
across the chest, and a third on the ankle. The male has an 
internal subgular vocal sac, and is provided, during the breeding 
season, with brown roughnesses on the inner side of the first 
finger. ; 
Ewing’s Tree-Frog (Hyla ewingti) has been lately sold in 
England for so low a sum as 5s. each. It is a native of New 
South Wales and Tasmania. It is a smaller Batrachian than 
the European Tree-Frog (H. arborea) and may be treated while 
in confinement in the same way. 
H. ewingti has a heart-shaped tongue which is free behind ; 
a moderately sized head, a little broader than it is long; a 
rounded snout and a distinct tympanum, about half the size of 
the eye; fingers with only the signs of a web, and toes webbed 
for about two-thirds of their length; the disks of both the fingers 
and toes smaller in size than the tympanum; and a fold on the 
ankle. The upper surfaces of this Batrachian’s body are either 
smooth or covered with small tubercles; the lower parts are 
granulated. According to Mr. Boulenger the colour of H. ewingi 
is as follows: ‘‘ Brownish or greyish above ; a dark streak on the 
canthus rostralis and the temporal region ; below this, a whitish 
streak runs from below the eye to the shoulder; a large well- 
defined dark spot commences between the eyes and covers the 
middle of the back; besides, the head and back are often speckled 
all over with blackish; the lower surfaces are whitish, im- 
maculate.”” The male has an external subgular vocal sac, and 
during the breeding season the black roughnesses before spoken of. 
Krefft’s Tree-Frog (Hyla kreffti?) is very like H. ewingu, but 
chiefly differs from it by the greater webbing of the fingers and 
